123         let r = self.inner_try_read();  in try_read()  localVariable
124         if r.is_none() {  in try_read()
127         return r;  in try_read()
212         let r = self.inner_try_write();  in try_write()  localVariable
213         if r.is_none() {  in try_write()
217         return r;  in try_write()
226         let r = self.inner_try_write().map(|mut g| {  in try_write_irqsave()  localVariable
230         if r.is_none() {  in try_write_irqsave()
234         return r;  in try_write_irqsave()
289         let r = self.inner_try_upgradeable_read();  in try_upgradeable_read()  localVariable
290         if r.is_none() {  in try_upgradeable_read()
294         return r;  in try_upgradeable_read()
301         let mut r = self.inner_try_upgradeable_read();  in try_upgradeable_read_irqsave()  localVariable
302         if r.is_none() {  in try_upgradeable_read_irqsave()
305             r.as_mut().unwrap().irq_guard = Some(irq_guard);  in try_upgradeable_read_irqsave()
308         return r;  in try_upgradeable_read_irqsave()